Apple details important enterprise fixes included in macOS 26.5

Apple’s macOS 26.5 release notes highlight enterprise fixes for managed Macs, including black screens after updates and certificate renewal during device enrollment.

The update also addresses unexpected restarts on some M5 MacBook Air, MacBook Pro M5 Pro, and MacBook Pro M5 Max models.

Other fixes cover SMB mounting and domain controller discovery, smart card login errors, Safari Autofill/Passkeys behavior, and XQuartz resizing.

For IT teams, these changes should improve fleet stability, login reliability, and deployment consistency on Apple hardware.